JPH067080B2 - Horizontal vibration type seismic test equipment for building side walls - Google Patents

Description

TECHNICAL FIELD The present invention relates to a horizontal vibration-type seismic resistance test apparatus for obtaining data on horizontal seismic resistance performance of a building side wall.

[Prior Art] As a performance testing device for a side wall of a building, there is one disclosed in Japanese Utility Model Laid-Open No. 59-77045.

That is, having at least one corner, a supporting member is projected outward from the upper end of the fixed polygonal main frame, and a pillar is hung vertically downward from the supporting member,
This is a performance testing device for building side walls, where lateral slabs are attached to columns.

Here, the building side wall, which is the DUT, is attached to the slab, and the side wall mounting surface formed by the pillar and the slab is vibrated to test the seismic performance.

[Problems to be Solved by the Invention]

In this performance testing device for the side wall of a building, the pillar vertically hung is pivotally attached to the support member provided at the upper end of the main frame by a pin, and the lower part of the pillar or the bottom layer of the slab is hydraulically operated. Perform a seismic test by rocking with a cylinder or the like.

Here, since the weight of the DUT is large, the reaction force is also large,
In order to support this reaction force, the rod diameter of the hydraulic cylinder must be increased, and the hydraulic pressure used must also be increased.

Further, since the displacement amount of the slab in the lowermost layer is increased in accordance with the number of layers, the cylinder stroke is increased, the size of the entire apparatus is increased, and a large force is required.

Further, since the column and the slab are connected by a pin, it is necessary to receive a reaction force applied to the pin, which makes it difficult to change the mounting height of the slab.

Also, it is possible to vibrate the side wall mounting surface back and forth or left and right, but the relative displacement of each slab is regulated by the column and becomes linear as a whole, so it is possible to test torsional displacement, wavy and other complicated It was difficult to test for large displacements.

Also, since each pillar and slab are hung by the supporting member of the main frame, it is suitable for large-scale test equipment in which the number of slab layers increases and the slab becomes more compact and the weight under the supporting member increases. It was not possible to deal with it.

[Means for Solving the Problems]

In view of the above problems, the present invention is a fixed main frame made of a substantially rectangular parallelepiped frame body in which a plurality of columns are erected in the vertical direction, and a plurality of columns of the main frame independently of each other in a horizontal plane. A plurality of slabs, which are supported movably, are arranged side by side in the vertical direction in a spaced apart manner, and form at least a front surface of the test object mounting surface, and the slabs in a direction perpendicular to the front test object mounting surface or In order to vibrate in a parallel direction, a plurality of guide means that can be changed 90 degrees in a horizontal plane, and to vibrate each slab in the direction guided by the guide means independently of other slabs A horizontal vibration-type seismic test apparatus for a side wall of a building having hydraulic oscillating means that can be changed by 90 degrees in a horizontal plane according to the guiding direction of the guiding means and is attached in association with a slab and a support. What constitutes A.

Here, the slab can be configured to have a substantially L-shape in plan view, a substantially U-shape in plan view, or a substantially rectangular shape in plan view.

[Action]

The horizontal vibration-type seismic resistance test apparatus for the side wall of the building according to the present invention is configured as described above, the test object is attached to the test object mounting surface such as the front surface of the slab, and the slab corresponding to each layer is provided by the guide means. By guiding and independently vibrating by hydraulic vibrating means, each slab is subjected to seismic resistance test in front-back or left-right vibration in a horizontal plane, test for substantially V-shaped displacement, test for twist displacement, wavy and other complicated This is to carry out a seismic resistance test. Since each slab is attached to a pillar fixed to the main frame, it has sufficient support strength even if the slab layers increase or the slab becomes a figure, and it is applicable to large-scale seismic test equipment. Is.

〔Example〕

 First, the concept of the present invention will be described.

FIG. 5 shows a conceptual explanatory diagram of a horizontal vibration type seismic resistance test apparatus for a building side wall according to the present invention.

In FIG. 5, reference numeral 51 is a main frame composed of a fixed frame body, and slabs 52 corresponding to respective layers are supported by the main frame 51 so as to be horizontally movable.

The slabs 52 are configured so that they can independently vibrate back and forth or left and right in a horizontal plane.
Can be moved using, for example, a hydraulic cylinder.

The side wall of the building, which is the device under test, is attached to the surface of the slab 52, and various vibration tests are performed.For example, in the case of performing a test against pressure in the horizontal direction on a paper surface, the slab 52 located at the top is Move it to the right (or left), and move the slab 52 located at the bottom to the left (or right).

At this time, the displacement amount of each slab is controlled by a computer according to the hierarchy, and the cylinder stroke and pressurization can be smaller than those of the conventional ones.

Further, if the slab 52 located in the upper part and the slab 52 located in the lower part are moved in the same direction without moving the slab 52 in the middle part, a substantially dog-legged displacement test can be performed. By changing the mounting position, it is possible to deal with twisting and other complicated displacements.

The details of the present invention will be explained based on illustrated embodiments.

FIG. 1 is a schematic perspective view for explaining a typical embodiment of a horizontal vibration type seismic resistance test apparatus for a side wall of a building according to the present invention.

In the figure, reference numeral 1 denotes a main frame made of a substantially rectangular parallelepiped frame, which is fixed to a floor 2.

The main frame 1 is provided with an observing table, which facilitates attachment of the device under test and observation of the test condition.

Reference numeral 3 denotes a pillar vertically fixed between the upper end portion of the main frame 1 and the floor portion 2. The plurality of pillars 3 are provided on at least one side surface of the main frame 1, and one corner portion is provided. It can be provided on the two side surfaces sandwiched, or on the entire three side surfaces or the four side surfaces including two adjacent corner portions, and the one shown in the figure is provided on the two side surfaces sandwiching one corner portion.

Reference numeral 4 denotes a fixed slab that is fixed at a position approximately in the middle of the height of the support pillar 3, and the fixed slab 4 is joined by sandwiching the support pillar 3 with, for example, two H-shaped steels.

In the illustrated embodiment, the test is performed on the L-shaped side wall, and the vibration or displacement of two side surfaces sandwiching one corner is assumed.

The fixed slab 4 formed in an L-shape is connected with the support pillar 3 sandwiched therebetween, and the fixing member 5 welded to the support slab 4 is connected to the support pillar 3.
Then, the fixed slab 4 and the support column 3 are connected to each other by tightening them with bolts or the like.

Reference numeral 6 denotes a movable slab, which are arranged above and below the fixed slab 4 in the same number, and are not shown in the drawing above the fixed slab 4.

Like the fixed slab 4, this movable slab 6 is also constructed by joining H-shaped steels, and at the position where the pillar 3 is held, a gap is provided in the front-rear and left-right directions by the displacement distance for the seismic test. Is supported by the support column 3 so as to be movable in the front, rear, left and right directions.

FIG. 2 shows a partially enlarged plan view of the support position of the movable slab 6 of the column 3, and FIG. 2 shows a sectional view taken along the line AA of FIG.
Line sectional views are shown in FIGS. 3 and 4, respectively.

That is, support members 7 and 7 are attached to the column 3 so as to hold the movable slab 6 in the vertical direction, and the upper and lower surfaces of the movable slab 6 are provided with plates at positions corresponding to the respective support members 7. The sliding member 8 is attached.

The support member 7 and the sliding member 8 are configured to slide easily. For example, a metal plate having a polished surface is attached, and the sliding of the metal plate surface causes the movable slab 6 to move in a horizontal plane. It is possible to support.

Reference numeral 9 denotes a guide roller attached to the column 3, which slides a guide member 10 attached to the movable slab 6 to stably vibrate the movable slab 6 in a test direction. A pair of the guide roller 9 and the guide member 10 constitutes a guide means.

Reference numeral 11 denotes a hydraulic cylinder as a hydraulic vibrating means that is attached in association with the support column 3 and the movable slab 6 to vibrate the movable slab 6, and is provided with 90 degrees in a horizontal plane depending on the direction of vibration test. It can be replaced.

For example, the hydraulic cylinder 11 shown in FIG. 4 is for vibrating the movable slab 6 in the left-right direction, and when vibrating the movable slab 6 in the front-back direction, the direction is changed by 90 degrees and replaced.
At the same time, the guide roller 9 and the guide member 10 are also changed by changing their directions by 90 degrees.

For example, the guide roller, the guide member, and the hydraulic cylinder 11 shown in FIG. 1 correspond to the vibration of the movable slab 6 in the front-rear direction, and those shown in FIG. 2 correspond to the vibration of the movable slab 6 in the left-right direction. To do.

Although not shown, the hydraulic cylinder 11 is connected to a hydraulic device, and the distance by which the movable slab 6 is moved by the hydraulic cylinder 11 is controlled by a computer or the like according to each layer.

The fixed slab 4 can change its height position by changing the fixing position of the fixing member 5 to the column 3, and the movable slab 6 can easily change its height by changing the position of the support member 7. You can choose.

At this time, if the support member 7 is provided with a guide roller (not shown), the height can be easily adjusted.

In this embodiment, the pillar 3 provided on the main frame 1
The slabs 4 and 6 are directed to the main frame 1
It is also possible to project a cantilever in the horizontal direction from the above and to provide two upper and lower support members on this, and to support the slabs 4 and 6 by this support member.

In this embodiment as described above, the movable slab 6 is vibrated with the fixed slab 4 fixed at a position approximately in the middle of the height of the support column 3 as the center of vibration, so that the stroke of the hydraulic cylinder 11 is reduced. Since it is possible to use a cylinder having a small rod diameter, it is possible to use a cylinder having a small rod diameter.

Moreover, if the movable slab 6 located above the fixed slab 4 and the movable slab 6 located below are displaced in the same direction,
It is possible to perform a test in which the DUT is deformed into a substantially V shape.

Further, the fixed slab 4 and the movable slab 6 can be easily changed in height by replacing the fixed member 5 and the support member 7, and it is easy to test various outer walls as a test object. It is possible.

In this embodiment, instead of the fixed slab 4, it is also possible to provide a movable slab which can be freely moved like other movable slabs 6, and is not particularly limited.

〔The invention's effect〕

The horizontal vibration type seismic resistance test apparatus for the building side wall according to the present invention is configured as described above, and it is possible to perform various vibration tests on the building side wall by independently applying the displacement according to each layer of the slab. In addition to the vibration test in the front-rear direction or the left-right direction in the horizontal plane, for example, it is possible to perform a substantially V-shaped test, a twist test, and other vibration tests.

Also, since each slab is attached to a pillar fixed to the main frame, it has sufficient support strength even if the slab layers increase or the slab becomes large, and it can be applied to large seismic test equipment. Is.

Further, the amount of displacement of the slab according to each layer can be reduced and the applied force can be reduced, so that the stroke and rod diameter of the hydraulic cylinder can be reduced.

Furthermore, since the height of the slab can be easily adjusted, it is possible to deal with various side walls.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining a typical embodiment of a horizontal vibration-type seismic resistance test apparatus for a side wall of a building according to the present invention, FIG. 2 is an enlarged cross-sectional plan view of an essential part of the same, and FIG. 3 is A of FIG. -A line sectional view,
FIG. 4 is a sectional view taken along line BB of FIG. 2, and FIG. 5 is a conceptual explanatory view of the present invention. 1: Main frame, 2: Floor, 3: Struts, 4: Fixed slab, 5: Fixed member, 6: Movable slab, 7: Support member, 8: Sliding member, 9: Guide roller, 11: Hydraulic cylinder.

Claims (4)

[Claims] 1. A fixed main frame composed of a substantially rectangular parallelepiped frame body in which a plurality of columns are erected in a vertical direction, and a plurality of columns of the main frame are independently movably designated in a horizontal plane. Along with it, a plurality of slabs that are arranged side by side in the vertical direction in a spaced apart manner and that form a test object mounting surface on at least the front surface, and the slabs can vibrate in a direction orthogonal to or parallel to the test object mounting surface on the front surface. A plurality of guide means that can be changed by 90 degrees in a horizontal plane for guiding, and the guide means for vibrating each of the slabs in a direction guided by the guide means independently of other slabs. A horizontal vibration-type seismic resistance tester for the side wall of a building, which has a hydraulic vibrating means which can be changed 90 degrees in a horizontal plane according to the guide direction and is attached in association with the slab and the support. 2. A horizontal vibration-type seismic test apparatus for building side walls according to claim 1, wherein the slab is substantially L-shaped in a plan view. 3. The horizontal vibration-type seismic test apparatus for building side walls according to claim 1, wherein the slab has a substantially U shape in plan view. 4. The horizontal vibration-type seismic test apparatus for a building side wall according to claim 1, wherein the slab has a substantially rectangular shape in plan view.